Plot summary
Malcolm discovers a homeless man named Norm ( Dan Butler ) living in the Lucky Aide. He agrees to keep Norm's secret as long as he provides Malcolm with tidbits on his new crush Wendy, a fellow Lucky Aide employee, until Lois finds out. Malcolm reveals too much information to the girl, making her think that he is stalking her. When Reese takes a job as an exterminator, he quickly learns that, to drum up business, he must infest the neighbors' lawns with caterpillars. He has a change of heart and begins to nurture them, only to be overwhelmed when they turn into butterflies and swarm on him.
Credits
Adapted from Wikipedia contributors, Malcolm in the Middle season 6. HTML formatting and reference markers removed.